... Airflow limitation or static hyperinflation: which is more closely related to dyspnea with activities of daily living in patients with COPD? Koichi Nishimura1, Maya Yasui2 , Takashi Nishimura2 , Toru ... measurement for evaluating the disease severity of COPD than peak dyspnea during exercise We hypothesized that static hyperinflation may be more closely related to clinical dyspnea than laboratory dyspnea, ... the inspiratory capacity (IC), are more closely related to exercise tolerance and dyspnea than the forced expiratory volume in second (FEV1) or forced vital capacity (FVC) [4-8] The Borg scale is...